Quoting Tvrtko Ursulin (2019-06-10 16:54:13)
> diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h
> index 01223864237a..343c4459e8a3 100644
> --- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
> +++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
> @@ -34,6 +34,7 @@ struct drm_i915_reg_table;
> struct i915_gem_context;
> struct i915_request;
> struct i915_sched_attr;
> +struct intel_gt;
> struct intel_uncore;
>
> typedef u8 intel_engine_mask_t;
> @@ -266,6 +267,7 @@ struct intel_engine_execlists {
>
> struct intel_engine_cs {
> struct drm_i915_private *i915;
> + struct intel_gt *gt;
I'd push for gt as being the backpointer, and i915 its distant grand
parent. Not sure how much pain that would bring just for the elimination
of one more drm_i915_private, but that's how I picture the
encapsulation.
I'm sure I'm missing a link or two :)
-Chris
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